3049-35-2

Basic information

• Product Name: 2,7-dimethylocta-2,4,6-trienedial
• Synonyms: 2,4,6-octatrienedial, 2,7-dimethyl-; 2,7-Dimethylocta-2,4,6-trienedial
• CAS NO: 3049-35-2
• Molecular Formula: C₁₀H₁₂O₂
• Molecular Weight: 164.2
• Mol File: 3049-35-2.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 303.3°C at 760 mmHg
• Flash Point: 113.3°C
• Density: 0.973g/cm³
• Vapor Pressure: 0.000939mmHg at 25°C
• Refractive Index: 1.488
• CAS DataBase Reference: 2,7-dimethylocta-2,4,6-trienedial(CAS DataBase Reference)
• NIST Chemistry Reference: 2,7-dimethylocta-2,4,6-trienedial(3049-35-2)
• EPA Substance Registry System: 2,7-dimethylocta-2,4,6-trienedial(3049-35-2)

Safety Data

• Hazardous Substances Data: 3049-35-2(Hazardous Substances Data)

Upstream product

• 29146-49-4 2,7-dimethyl-octa-2,6-diene-1,8-diol 
• 90031-29-1 1,8-dimethoxy-1,3,6,8-tetramethoxy-2,7-dimethyl-4-octene 
• 58626-63-4 2,7-dimethyl-octa-2,6-dien-4-ynedial 
• 86043-79-0 2,7-dimethyl-octa-2,6-dienedioic acid dimethyl ester 
• 36551-27-6 1,1,3-triethoxy-2-methyl-butane 
• 100624-48-4 1,1,8,8-tetraethoxy-2,7-dimethyl-octa-2,4,6-triene 
• 39501-93-4 1-ethoxy-2-methyl-buta-1,3-diene 
• 7319-16-6 methyl prop-1-enyl ether 
• 5370-08-1 1,1,4,4-tetramethoxy-2-butene 

Downstream Products

• 1638-05-7 β-Apo-12'-carotenal 
• 72002-36-9 (3S,3'S)-zeaxanthin 
• 53163-56-7 4,9-dimethyl-dodeca-2,4,6,8,10-pentaene-1,12-diol 
• 16361-13-0 trans-3,3′-dihydroxyisorenieratene 
• 1376185-96-4 [((1R,1'R)-(3E,5E,7E,9E,11E,13E,15E)-3,7,12,16-Tetramethyloctadeca-3,5,7,9,11,13,15-heptaen-1,17-diyne-1,18-diyl)bis(3,5,5-trimethylcyclohex-3-ene-4,1-diyl)bisoxy]bis-(triethylsilane) 
• 502-65-8 lycopene 
• 472-61-7 (3S,3'S)-astaxanthin 
• 640-49-3 (2E,4E,6Z,8E,10E,12E,14E)-4,9,13-Trimethyl-15-(2,6,6-trimethyl-cyclohex-1-enyl)-pentadeca-2,4,6,8,10,12,14-heptaenal 
• 64603-92-5 sodium (2E,4E,6E,8E,10E,12E,14E)-2,6,11,15-tetramethylhexadeca-2,4,6,8,10,12,14-heptaenedioate 
• 5056-17-7 (2E,4E,6E)-2,7-dimethyl-2,4,6-octatrienedial 

Relevant articles and documents

METHODS OF SYNTHESIZING CAROTENOIDS

Provided herein novel processes for preparing carotenoids, substantially pure carotenoids (such as substantially pure trans crocetin diesters and substantially pure trans sodium crocetinate), pharmaceutical compositions, and related methods of treatment and uses. The provided compositions have uses in treating diseases, disorders and conditions associated with, but not limited to, infection, ARDS, endotoxemia, inflammation, sepsis, ischemia, hypoxia, shock, stroke, lung injury, wound healing, traumatic injury, reperfusion injury, cardiovascular disease, kidney disease, liver disease, inflammatory disease, metabolic disease, pulmonary disorders, blood related disorders and hyperproliferative diseases such as cancer. Methods of making, and using the aqueous solutions and pharmaceutical compositions are also provided.

METHOD FOR SYNTHESIZING 2,7-DIMETHYL-2,4,6-OCTATRIENE-1,8-DIALDEHYDE

Provided in the present invention is a method for synthesizing 2,7-dimethyl-2,4,6-octatriene-1,8-dialdehyde. The synthesis method comprises the following steps: (1) adding acetaldehyde diethyl acetal and ethyl-(1-propenyl)-ether under the effect of a catalyst to produce 1,1,3-triethoxy-2-methyl-butane; (2) pyrolysis synthesizing 1,1,3-triethoxy-2-methyl-butane under the catalytic effects of isoquinoline and p-Toluenesulfonic acid to produce 1-methoxy-2-methyl-1,3-butadiene; (3) dissolving 1-methoxy-2-methyl-1,3-butadiene in anhydrous ethanol solvent for synthesis with a phase transfer catalyst, cetyl-trimethyl ammonium bromide, and a chlorinating agent, trichloroisocyanuric acid, to generate 4,4-diethoxy-3-methyl-1-chloro-butene; (4) combining 4,4-diethoxy-3-methyl-1-chloro-butene with a triphenylphosphine salt to produce a phosphonium salt; and (5) condensing the phosphonium salt under the effects of hydrogen peroxide in conjunction with sodium carbonate solution to generate 1,1,8,8-tetramethyl-2,7-dimethyl-2,4,6-octatriene; then hydrolyzing under acidic conditions to synthesize 2,7-dimethyl-2,4,6-octatriene-1,8-dialdehyde. The present invention has a simple process route, is easy to operate, and has mild conditions, great yield, and great industrial value.

Synthesis of 19,19' D6 β carotene

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